SimenB/stylint

'use strict'

// super simple.
// if theres anything on the line besides whitespace, it aint empty
var emptyLineRe = /\S/


/**
 * @description sets values like context, determine whether we even run tests, etc
 * @param {string} [line] curr line being linted
 * @returns {Function | undefined} undefined if we catch something, else lint()
 */
var setState = function( line ) {
    this.state.context = this.setContext( this.cache.line )

    // ignore the current line if @stylint ignore
    if ( this.cache.origLine.indexOf( '@stylint ignore' ) !== -1 ) {
        return
    }

    // if @stylint on / off commands found in the code
    if ( this.stylintOn( this.cache.origLine ) ||
        this.stylintOff( this.cache.origLine ) === false ) {
        return
    }

    // if hash starting / ending, set state and return early
    if ( this.hashOrCSSStart( line ) ||
        this.hashOrCSSEnd( line ) === false ) {
        return
    }

    // if starting / ending keyframes
    if ( this.keyframesStart( line ) ||
        this.keyframesEnd( line ) === false ) {
        return
    }

    // if starting / ending css4 :root
    // we'll need to capture custom properties
    if ( this.rootStart( line ) ||
        this.rootEnd( line ) === false ) {
        return
    }

    // if entire line is comment, just check comment spacing and that's it
    if ( this.startsWithComment( line ) ) {
        if ( typeof this.config.commentSpace !== 'undefined' ) {
            this.state.conf = this.config.commentSpace.expect || this.config.commentSpace
            this.state.severity = this.config.commentSpace.error ? 'Error' : 'Warning'
            this.lintMethods.commentSpace.call( this, this.cache.line, this.cache.origLine )
        }
        return
    }

    // if empty line
    if ( emptyLineRe.test( line ) === false ) {
        this.cache.sortOrderCache = []
        return
    }

    // actually run tests if we made it this far
    if ( this.state.testsEnabled === true ) {
        return this.lint()
    }
}

module.exports = setState